diff --git a/.github/workflows/pr-validation.yml b/.github/workflows/pr-validation.yml
index 63deb17c2..5859d2894 100644
--- a/.github/workflows/pr-validation.yml
+++ b/.github/workflows/pr-validation.yml
@@ -41,7 +41,7 @@ jobs:
           gh workflow run pr.yml \
             --repo xero-internal/xeroapi-sdk-codegen \
             --ref master \
-            --field branch_name="$BRANCH_NAME" \
+            --field oas_branch="$BRANCH_NAME" \
             --field oas_repo="$OAS_REPO"
 
           # Wait a moment for the run to be created